Rotary motor using electrical linear actuators
US6794772B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2003 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Apr 15, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18664
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric motor assembly is provided that includes a housing. A rotor is arranged in the housing and is rotatable about an axis. A vehicle wheel is coupled to the rotor. The rotor has an annular profile defining sinusoidal teeth and is generally concentric with the axis. The angle and number of oblique surfaces of the teeth and the diameter of the rotor, in part, define the speed and torque of the rotor. A plurality of electric linear actuators are arranged circumferentially about and generally parallel to the axis. The actuator includes shafts having ends that engage the profile. The shafts are movable between extended and retracted positions to rotate the rotor in a desired direction. A sensor detecting the position of the rotor and a controller may be used to effect the desired rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.